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大学英语四级标准大学英语四级标准范文2Withthedevelopmentofthesocietyandeconomy,variousprivateschoolsarise.Whenyoureadnewspapers,turnonTV,orevenwalkontheroad,youwillinevitablyseelotsofadvertisementsaboutprivateschools,mainlydealingwithforeignlanguages,computers,music,sports,andsoon.However,isitagoodorabadthingtohavesomanyprivateschools?Asacoinhastwosides,soaretheprivateschools.Ontheonehand,privateschoolscancatertothespecialneedofthesocietyandthespecialneedofpeople.Ontheotherhand,theyoftenbringpeopleextraburdenbecauseofcomparisonandcompetition.Wereitlefttomedecidewhetherweshouldhaveasocietywithoutprivateschoolsorasocietywithprivateschools,Ishouldnothesitateamomenttopreferthelatter.大学英语四级标准范文3Somerecentdevelopmentsincomputerindustrymakescientistspredictthatthegapbetweenbeingsandthemachinewillbeclosedbytheyear20xx.Tounderstandthesignificanceofthisprediction,letuscomparethehumanbrainwithexistingcomputers.Thebrainconsumeselectricalenergyattherateof25wattsandoccupiesvolumeofonetenthofacubicfoot.Thebrainhousesbetween10billionand100billionitemsofinformation.Everybraincellisdirectlyconnectedtomanyothercells.Asaresult,thecellsinwhichinformationisstoredcancommunicatewiththousandsofothercells.Incontrast,thecomputerconsume1000,000wattsofelectricalpowerandoccupieshundredsofcubicfeetofspace.Thecomputermemoryislikeacellofpigeonholes,withnothinkingcapacityandnoconnectionselsewhere.Inaword,theelectronicbrainscanhopelesslysucceedincomparisonwithhumanbrains.大学英语四级标准范文4Everyonehashisideals.Abusinessmanwishestomakegreaterprofit;afarmerexpectsplumperharvests;astudenttriestoleanmoreandbetter.Andeveryonestrives,withmoreorlesseffort,torealizehisideal.However,oneshouldbesensibleaboutwhetherhisidealiswellfoundedornot.Ifitis,onehastoplanandwordhardforitsrealization.Effort,skillandpersistenceareallnecessary.Andveryoften,onehastogethelpfromothers,includingadviceandsupportinoneformoranother.Myidealistobecomeadoctor.Itissaidthatthefieldofmedicineisawell-paidprofession,butItakeisasalofty(高尚的)professionentrustedwithsa
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